半球研磨均匀性三维仿真
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摘要
为了进一步改善球面研磨轨迹的均匀性,提高球面加工的一致性和圆度指标,本文利用定心变角旋转加工法对半球精密加工进行研究。建立半球研磨的Preston方程,发现了摇摆速度和旋转速度是影响材料去除率的主要因素。基于UG方案建立了半球运动的三维仿真模型,得到了半球研磨的运动规律,应用Vericut软件对研磨过程进行了仿真。试验结果表明:摇摆速度与旋转速度比值为2时,半球研磨的均匀性从85%提高到100%。本文的研究结果对于半球零件的加工研究有较大的参考价值和指导作用。
An effective hemisphere grinding method-rotation machining with variable angles around a point is presented in this paper in order to improve lapping uniformity of spherical surface lapping path as well as to enhance the consistency and sphericity index of spherical surface processing. The established Preston function of hemisphere lapping indicates that the swing speed and rotational speed are the main factors affecting the material removal rate.Using the UG software,a 3 D hemisphere simulation model was set up,and the movement pattern of hemisphere lapping was derived. On the basis of this movement pattern,the grinding process was simulated using the software Vericut,yielding a reasonable ratio of swing speed and rotational speed. Experimental results show clear improvement in the uniformity of hemisphere grinding. When the ratio of rolling speed to rotation speed is 2,the uniformity of hemispheric grinding is increased from 85% to 100%. The main findings of this paper have an important reference value and guidance function to hemisphere machining study.
An effective hemisphere grinding method-rotation machining with variable angles around a point is presented in this paper in order to improve lapping uniformity of spherical surface lapping path as well as to enhance the consistency and sphericity index of spherical surface processing. The established Preston function of hemisphere lapping indicates that the swing speed and rotational speed are the main factors affecting the material removal rate.Using the UG software,a 3 D hemisphere simulation model was set up,and the movement pattern of hemisphere lapping was derived. On the basis of this movement pattern,the grinding process was simulated using the software Vericut,yielding a reasonable ratio of swing speed and rotational speed. Experimental results show clear improvement in the uniformity of hemisphere grinding. When the ratio of rolling speed to rotation speed is 2,the uniformity of hemispheric grinding is increased from 85% to 100%. The main findings of this paper have an important reference value and guidance function to hemisphere machining study.
引文
[1]王京锋,刘景林,闫亚超,等.半球型动压气体轴承陀螺电机设计及性能测试[J].哈尔滨工业大学学报,2017,49(9):144-150.WANG Jingfeng,LIU Jinglin,YAN Yachao,et al.Design and performance testing of hemispheric aerodynamic bearing gyro motor[J].Journal of Harbin Institute of Technology,2017,49(9):144-150.
[2]YUAN J L,WANG Z W,LYU B H,et al.Simulation study on the developed eccentric V-grooves lapping mode for precise ball[J].Key engineering materials,2005,304-305:300-304.
[3]纪宏波,刘成刚.高精度球体研磨加工技术的现状和发展[J].机械研究与应用,2016,29(3):205-207.JI Hongbo,LIU Chenggang.The situation and development of high-precision ball lapping technique[J].Mechanical research&application,2016,29(3):205-207.
[4]YAN Jiwang,TAMAKI J,SYOJI K,et al.Single-point diamond turning of CaF2for nanometric surface[J].International journal of advanced manufacturing technology,2004,24(9/10):640-646.
[5]程相文,王凌霄.四轴球体研磨机研磨轨迹的研究[J].制造业自动化,2013,35(20):98-100,107.CHENG Xiangwen,WANG Lingxiao.Research on lapping trace of four cup lapping machine[J].Manufacturing automation,2013,35(20):98-100,107.
[6]张坤领,韦建军.基于Matlab的数控磨削球面粗糙度分析及仿真[J].组合机床与自动化加工技术,2010(3):16-21.
[7]ZHANG Kunling,WEi Jianjun.Analysis and simulation of numerical control grinding spherical roughness based on Matlab[J].Combined machine tool and automatic machining technology,2010(3):16-21.
[8]郁炜,吕冰海,姚蔚峰,等.基于ADAMS的球体双自转研磨方式下研磨盘转速优化研究[J].中国机械工程,2013,24(7):866-872,881.YU Wei,LYU Binghai,YAO Weifeng,et al.Speed optimization for lapping plates in RDP lapping mode based on ADAMS[J].China mechanical engineering,2013,24(7):866-872,881.
[9]YU W,LIU D,YUAN J L,et al.Processing of lapping track in dual rotated plates eccentric lapping mode[J].Key engineering materials,2011,487:248-252.
[10]郑斌,袁巨龙,赵萍,等.变曲率沟槽精密球研磨加工优化实验研究[J].表面技术,2017,46(2):214-219.ZHENG Bin,YUAN Julong,ZHAO Ping,et al.Experiment of optimized grinding of precision ball with variableradius groove[J].Surface technology,2017,46(2):214-219.
[11]刘伟,邓朝晖,万林林,等.基于正交试验-遗传神经网络的陶瓷球面精密磨削参数优化[J].中国机械工程,2014,25(4):451-455.LIU Wei,DENG Zhaohui,WAN Linlin,et al.Parameter optimization on precision grinding of ceramic sphere using orthogonal experiment and genetic neural network[J].China mechanical engineering,2014,25(4):451-455.
[12]LIANG Fusheng,ZHAO Ji,JI Shijun,et al.Spherical approximation of free-form surface closed to a sphere in semi-finishing[J].Key engineering materials,2016(679):199-206.
[13]郭伟刚,袁巨龙,项震,等.基于单转盘变曲率沟槽研磨方法的球体加工试验研究[J].表面技术,2018,47(7):252-258.GUO Weigang,YUAN Julong,XIANG Zhen,et al.Spheroidal machining test based on variable turning curvature grinding method with single turntable[J].Surface technology,2018,47(7):252-258.
[14]PRESTON F W.The theory and design of plate glass polishing machines[J].Journal of the society of glass technology,1927(11):214-256.
[15]周芬芬,袁巨龙,姚蔚峰,等.陶瓷球成球过程的建模与仿真[J].华中科技大学学报(自然科学版),2016,44(2):128-132.ZHOU Fenfen,YUAN Julong,YAO Weifeng,et al.Modeling and simulation on sphere-shaping of ceramic balls[J].Journal of Huazhong University of Science and Technology(natural science edition),2016,44(2):128-132.
[2]YUAN J L,WANG Z W,LYU B H,et al.Simulation study on the developed eccentric V-grooves lapping mode for precise ball[J].Key engineering materials,2005,304-305:300-304.
[3]纪宏波,刘成刚.高精度球体研磨加工技术的现状和发展[J].机械研究与应用,2016,29(3):205-207.JI Hongbo,LIU Chenggang.The situation and development of high-precision ball lapping technique[J].Mechanical research&application,2016,29(3):205-207.
[4]YAN Jiwang,TAMAKI J,SYOJI K,et al.Single-point diamond turning of CaF2for nanometric surface[J].International journal of advanced manufacturing technology,2004,24(9/10):640-646.
[5]程相文,王凌霄.四轴球体研磨机研磨轨迹的研究[J].制造业自动化,2013,35(20):98-100,107.CHENG Xiangwen,WANG Lingxiao.Research on lapping trace of four cup lapping machine[J].Manufacturing automation,2013,35(20):98-100,107.
[6]张坤领,韦建军.基于Matlab的数控磨削球面粗糙度分析及仿真[J].组合机床与自动化加工技术,2010(3):16-21.
[7]ZHANG Kunling,WEi Jianjun.Analysis and simulation of numerical control grinding spherical roughness based on Matlab[J].Combined machine tool and automatic machining technology,2010(3):16-21.
[8]郁炜,吕冰海,姚蔚峰,等.基于ADAMS的球体双自转研磨方式下研磨盘转速优化研究[J].中国机械工程,2013,24(7):866-872,881.YU Wei,LYU Binghai,YAO Weifeng,et al.Speed optimization for lapping plates in RDP lapping mode based on ADAMS[J].China mechanical engineering,2013,24(7):866-872,881.
[9]YU W,LIU D,YUAN J L,et al.Processing of lapping track in dual rotated plates eccentric lapping mode[J].Key engineering materials,2011,487:248-252.
[10]郑斌,袁巨龙,赵萍,等.变曲率沟槽精密球研磨加工优化实验研究[J].表面技术,2017,46(2):214-219.ZHENG Bin,YUAN Julong,ZHAO Ping,et al.Experiment of optimized grinding of precision ball with variableradius groove[J].Surface technology,2017,46(2):214-219.
[11]刘伟,邓朝晖,万林林,等.基于正交试验-遗传神经网络的陶瓷球面精密磨削参数优化[J].中国机械工程,2014,25(4):451-455.LIU Wei,DENG Zhaohui,WAN Linlin,et al.Parameter optimization on precision grinding of ceramic sphere using orthogonal experiment and genetic neural network[J].China mechanical engineering,2014,25(4):451-455.
[12]LIANG Fusheng,ZHAO Ji,JI Shijun,et al.Spherical approximation of free-form surface closed to a sphere in semi-finishing[J].Key engineering materials,2016(679):199-206.
[13]郭伟刚,袁巨龙,项震,等.基于单转盘变曲率沟槽研磨方法的球体加工试验研究[J].表面技术,2018,47(7):252-258.GUO Weigang,YUAN Julong,XIANG Zhen,et al.Spheroidal machining test based on variable turning curvature grinding method with single turntable[J].Surface technology,2018,47(7):252-258.
[14]PRESTON F W.The theory and design of plate glass polishing machines[J].Journal of the society of glass technology,1927(11):214-256.
[15]周芬芬,袁巨龙,姚蔚峰,等.陶瓷球成球过程的建模与仿真[J].华中科技大学学报(自然科学版),2016,44(2):128-132.ZHOU Fenfen,YUAN Julong,YAO Weifeng,et al.Modeling and simulation on sphere-shaping of ceramic balls[J].Journal of Huazhong University of Science and Technology(natural science edition),2016,44(2):128-132.